Kachoonablast - When you cough or sneeze and your butt lets out a fart so lo

When you cough or sneeze and your butt lets out a fart so loud it could be heard in space.

I was eating a pizza and my butt farted so loud it made my dog run out of the room.

My brother was sleeping and his butt farted so loud it woke up the whole neighborhood.

I sneezed and my butt farted like it had a megaphone and a dragon.